Valve.



J. D. JONES.,

VALVE.

APPLICATION FILED FBB.14, 1913. 1, 1 1 3,789. Patented ont. 13, 1914.

/2 an vente@ @vih/www rHE MORRIS PETERS CO., PHOm-LlTlln, wAsHlNzinIN.n. 1'

UNITED sTATEs PATENT OFFICE. N

JOHN n. -aoivns OEWALLA WALLA', WASHINGTON."

y vALvEf Specification. of Letters i 'Patented Oct,13,1914.`

Appiication aied'rebruay 14,191.3. 'serial No. 74S,451.'

To all whom t may concern:

Be it known that I, JOHN D. `Jonnspa.

citizen of the United States, residing at Walla Walla, in the county ofWalla Walla and State of Washington, have invented certain new anduseful Improvements in Valves; and I do hereby declare the following tobe a full, clear, andeXact description of the invention, suchas willenablel others skilled in the art to which it appertains to make and usethe same.. i

This invention relates to valves and has for an object to providea valvehaving `improved means for seating the valve within the housing when thevalve is bothat; open and closed position. y A further object oftheinvention is to provide a housing internally tapered with a valveexternally tapered complementary to the housing and withimprovedmeansfor moving the valve longitudinally withinfthe housing whenit isy rotated and improved means for producing a tight it when thevalve is seated eitherat open orclosed position. i

With these and other objects in view the invention comprises certainnovel constructions, combinations and arangement of parts as will behereinafter more fully described and claimed. 'v i In the drawings:Figure 1 is a diametrical sectional view of the improved valve shownarranged as an air cock for air-brake systems or the like. Fig. 2 -is aperspective"` view of the cam ring usedin the valvey Both the housing 10and the valve 11 are open v at their smaller ends for communication witha pipe 12 which may be connected therewith in any usual well knownmanner. The inner open end of the valve 11 is also reversely tapered asindicated at 13 and a conical sleeve 14 is inserted into the housing andinto position for engagement with such tapered end of the valve as shownat Figs. 1 and The sleeve 14 may be held in positionin any usual wellknown manner as by being shrunk in,` pressed in orthe like, all of whichwould be comprehended in Figs. 1 and 3. A iiange 15 is; also preferablyprovided which engagesagainst a shoulder 16 of the housing, and thesleeve is retained in position by screwing the pipe 12 into place asshown at 12".

ber, and :said lugs travel in cam grooves to move the yvalve.longitudinally `when it lis f rotated. Asshown at Fig. 1 the grooves 184are formed in a ring 19` which `is set into the .housing 10 and held inposition against rotation by dowels V20 f and a follower ring 21.

This follower ring 21 is in turn held in position `by theI cap or plug22. `As shown at Fig. 3 the cam grooves 18 are formed directly in the`housing and in either case theylareopen at the top as indicated at 231n\F1g.2 and are-.closed by the superposed member, the member at Fig. 3being the cap 24. The valve member 11 is provided` with a ste1n25 whichextendsv through the closure as for instancethe plug 22 and capihevalvlll isjprovided with diametri- .l .cally extending lugs 17 whichfor the convenience of construction are preferably `formed.

y atthe upper or larger end of the valve mem- `v 24 and is provided witha` squared end 26 i `for receiving an operating implement as the lhandle 27'shown at Fig. 1. It will be noted especially` fromFig. 2 thatthe cam grooves have their opposite ends lower than the center andequally depressed. By such arrangement it will be apparent that when thevalve member 11 is rotated the lugs 17 will travel in such grooves andat opposite extremes of the grooves the valve member V1.1` will beforced downwardly or toward its smaller end t0 properly seat the latterbetwen the housing 10 and the sleeve 14. At such lower end the valve yisalso provided with a gasket 28 which engages a shoulder 29 within thehousingand'forms an auxiliary means, taken in conjunction with the taperof the valve housing and the sleeve, for closing or forming an air-tightjoint between the valve member and the housing.

By the arrangement described it will be apparent that i when the valveis rotated either to open or closed position a longitudinal as well as arotary movement is imparted thereto which by reason of the taper yservesto first loosen the valve in the housico ' ing and permit its freerotation while at the other extreme of its movement it is again peredcomplementary to the housing and internally tapered reversely thereto, atapered sleeve inserted in the smaller' end of the housing andlpositioned to engage the internal taper ofthe valveyand means to move i`the valve longitudinally when rotated.

2;'In a valve, a housingl internally tapered and open at its smallerend, a tubular valve member externally tapered compl'ementary to 'theinternal taper of the housing and internally tapered at its smaller end`reversely to itsl externall taper, a tapered tubular sleeve inserted inthevsmaller end l yof `the housingand projecting intov and 'litting theinternal` taper of the valve, and

meansto'movethe valve member longitudithe housing'and sleeve.

nally to simultaneously vary its Contact with 3. In a valvefa housinginternally tapered and provided-with an outwardly facingannular shoulderVat its smaller end, a

valve member external-ly tapered comple-l mentary to the internal taperof the housing and internally tapered reversely to the .external taper,a sleeve inserted in. the ysmaller end of the' housing and in` positionto engage theinternal taper of the valve member, an annular gasketcarried at the smaller end of the valve and positioned to engage theannular shoulder, and means to move the valve longitudinally to vary thecontact of the valve with the tapered bore of the housing and thetapered bore of the sleeve and the contact of the gasket with thevshoulder.

4:. In a valve, a housing internally tapered, a valve externally taperedcomplementary to the taper of the housing, a cam memberremovablyinserted in the housingk and provided with a cam groove, theextremes of which are equally spaced from the ends of the housing andthe middle of which is spaced from the smaller end of the housingfarther than the extremes and opens through one side of said member, alug on the valve `member riding in the groove, means to hold the cammember against movement andclose the open portion of its groove, andmeans to rotate the valve member.

5. In a valve, a housing internally tapered, a valve member externallytapered complementary to the taper of the housing, a cam ring insertedin the larger end of the housing and provided with a cam groove openingat its highest point through one side of the ring, a follower ringinserted in the housing against said cam ring and closing the openportion of its groove, a lug formed upon the valve member riding in saidgroove said cam and lug being adapted to move the valve memberlongitudinally as.

the valve is rotated, and a closure for the housing bearing uponthefollower ring- In testimony whereof I alx my signature in presence oftwo witnesses.

' JOHN D. JONES.

Witnesses:

\ GEORGE H. MACDONALD,

L. L. MORRILL.

Copiesof this patent may be obtained for five cents e'ach, byyaddressing the` Commissioner of Patents.

Washington, D; CJ

